Centrifugal separator



April 26 1927.

T. C. THOMSEN CENTRIFUGAL SEPARATOR Fiied July 9, 1926 I z I 12/41/27???[we/afar. L7 homocs Christc'anT/vomsen P fltkorney.

Patented Apr. 26, 1927.

THQMAS CHRISTIAN TEOIVIfiEN, 0 CGPENHAG'EN, DEBIM" KQEFQEID, T-IAUBERG,MAR-STRAND 81; I'IEIJWEG; AKTIEElIJE' HAG-EN, DENMARK.

SEGNGB TO MESSRS.

lllTAll, 0F COE'EN- CENTRIFUGAL SEPliRATOR.

Application filed July 9, 1926, Serial No.

Centrifuges are often employed for clean inp,- various liquids and forremoving substances suspended in them. Thus centrifuges are frequentlyemployed in chei'nical cleaning; establishments for cleaning the usedbenziuc from particles of cloth, dust, dirt or the like solid substancessuspended in the benzine.

'lfhese centrifuges, however, have the disadvantage that the solidsubstances which are readily separated. collect at certain points in thedrum oi the centrifuge where by the working; capacity of the centrifugegreatly reduced. It is the object of the esent invention to ensure theseparation of the solid particles in all parts of the drum, so tautthese particles separated will collect in an even layer oi somewhat thesame thickness along the inside of the wall of the drum, wheretrom suchlayer is easily removed when the drum inset is provided with a bottomoutside ridge having the shape of a scraper and passing along the inside of the drum when the inset is "aised.

The invention is shown in the accompanying drawing, in which 1 is avertical longitudinal section, partly broken away, along the line ll inFig. 2. i

2 shows the centrifuge drum with inset but after the upper part has beenre moved.

Numeral 1 indicates the central guide tube of the centrifuge bowl and isadapted to seaton the shaft oi": a rotor (not shown). The bowl or drumof the centrifuge is preterably formed of a frusto-conical bottom 2, acylindrical outer wall 3 and a frustroconical upper wall 4, the walls 3and 4 being removably secured together by the clamping nut 5.

Centrally disposed in the drum or bowl is an inset 6 adapted to rotatetherewith and having a central opening 12 in the top thereof. The bottomof the inset 6 is continued outward as at 7 and abuts the wall 3 of thedrum, thus serving to scrape the inside surface of wall 8 when the inset6 is raised.

Inset 6 is provided, in the present e1nbodiment of the invention. withpairs of imperl'o ate walls 8, each pair of walls forming a cell 10. Inthe drawings I have shown four pairs of radial walls, but it will beunderstood that this number of pairs of *alls may be varied and that thewalls need 121,402, and in Denmark March 8, 1926.

not be radial. (ltnninluiication between the top of the bowl and thespace between the cells is allorded by opening 12 in the top of theinset and openings ll .in the vertical wall of the inset Each cell isprovided with an opening 9 in the rear wall thereof. which opening ispreferably located at the bottom of the wall to be as ren'iote aspossible from the openinpgs 14. in the inset 6. Each opening 9,therefore, terms a means ot communication between the respective cell 10and the space or chamber 11 i. unediately behind the cell.

The liquid to be purified is introduced into the bowl tlurou zh theopening 12, and as the bowl is rapidly revolving, the body of liquidwill a uue the term of an apro ;irnately vertical cylinder covering theinside of the wall 3 of the bowl. The substances suspended in the liquidwill be deposited over the entire inner surface of said wall 3. As moreand more impure liquid s introduced into the bowl, the thickness of thewall oi the liquid cylinder covering the inner surface 01 the wall 3will be increased until the addition of more impure liquid will forceout through the opening 13 in the top of each cell some of the purifiedliquid.

It will thus be seen that the liquid, after it has been purified in thespaces or chamber 11, must travel through the openings 9 and up throughcells 10 and out of openings 13.

In this manner. the complete removal of the substances suspended in theliquid is ensured, and the suspended material deposited evenly eye theentire inner surface of wall 3 whence it may be easily removed.

It is evident that many changes may be made in the specific constructiondescribed. and the invention is therefore to be limited only by thescope oi. the following claims.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is z- 1. A centrifuge for ren'ioving suspendedsubstances from liquids. comprising, a bowl having an opening; centrallydisposed in the top thereof, a plurality of pairs of walls extendingout-ward troin the center of the bowl, each pair of walls forming acell, and an opening in the rear wall of each cell communicating withthe space between the cells.

2. A centrifuge for removing suspended substances from liquidscomprising, :1 bowl having an opening centrally disposed in the topthereof, an inset in the center of the bowl, a plurality of pairs ofWells extending outward from the inset, each pair of walls forming acell, and an opening in the rear wall of each cell communicating Withthe space between the cells.

8. A centrifuge for removing suspended substances from liquidscomprising, a. bowl having an opening centrally disposed in the topthereof, an inset in the center of the bowL a plurality of pairs ofWells extendin o; outward From the inset, each pair of Wells forming acell. communicating; through 15 an opening in its top with the openingin the howl top openings in the inset toruiliug means of coinnmnicationbetween the bowl top opening and the space hetn'een the cells, and onopeningin that portion of the rear wall of each cell remote from saidinset openings and connnunicz'xting with the space hetween the cells. v

In testimony whereof atlix my signature.

THOMAS CHRISTIAN 'LHOMSEN.

